package tezhongbing;

import java.util.Arrays;
import java.util.List;

import org.junit.Test;

public class CollectionTest {
	@Test
	public void arraysTest(){
		List<String> list = Arrays.asList("a","b","c");//这种方式得到的list长度不能更改
		list.add("d");
		System.out.println(list);
	}
}
